August 10, 2025
How to Manage Stock Using Invoice Software
Unlock the power of your invoicing software to streamline inventory. Learn how a free invoice maker can double as a powerful inventory management tool...
Read articleBilling & GST Guides
Practical guides from InstaInvoice on GST invoices, purchase orders, stock management and billing for Indian small businesses.
August 05, 2025
How to Create Purchase Orders and Invoices Online
Learn the seamless process of creating professional purchase orders and invoices online. A guide for freelancers and small businesses in India...
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July 28, 2025
Benefits of Automated Inventory Tracking in Invoicing Apps
Discover how automated inventory tracking within your invoicing app can boost efficiency, reduce errors, and provide key business insights...
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July 20, 2025
Invoice Generation Best Practices in India
Navigating the specifics of invoicing in India can be tricky. This guide covers the best practices for creating compliant and professional invoices...
Read articleFormats and free tools
- GST CalculatorAdd or remove GST with the CGST/SGST/IGST split.
- Free Invoice GeneratorFree online invoice generator for Indian businesses. Make GST invoices with HSN codes, CGST/SGST/IGST and your logo, then download a PDF or share it on WhatsApp. No limits.
- GST Billing SoftwareFree GST billing software for shops, traders and service businesses in India: GST invoices, inventory, payments, GSTR-1 and GSTR-3B reports. Works online and offline on Windows.
- Quotation MakerMake professional quotations online for free. Add items, GST and validity, download a PDF or send it on WhatsApp, then convert the accepted quotation to an invoice in one click.
- Proforma Invoice FormatProforma invoice format for India: what it is, what to include and how it differs from a tax invoice. Create a proforma invoice online for free and convert it to a GST invoice later.
- Delivery Challan FormatGST delivery challan format with all fields required by Rule 55: when to use it, copies needed and how to create one online for free, with or without prices.
- Purchase Order FormatPurchase order format for Indian businesses: what to include, PO vs invoice, and how to create and send purchase orders to vendors online for free.